SEAT BACKREST WITH GOOD SUPPORT EFFECT
Provided in the present utility model is a seat backrest with a good support effect, comprising a seat surface, side struts being vertically secured on both sides of the rear edge of the seat surface, backrest plates being connected to the side struts on both sides by means of springs, and the backr...
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Format: | Patent |
Sprache: | chi ; eng ; fre |
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